How many flights depart from Austin to Illinois on average per day?

The number of flights available between Austin and Illinois is 39 per day as of September 2025. The most frequent departure time is 11:00AM, with 58% of daily flights leaving at noon.

How many flights depart from Austin to Illinois on average per week?

As of September 2025, 275 flights take off from Austin and land in Illinois each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.

What airlines fly to Illinois?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Austin according to our data. American Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Austin Bergstrom to Illinois?

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Austin Bergstrom to Illinois

When did momondo last update prices for flights from Austin Bergstrom Airport to Illinois?

Prices for flights from Austin Bergstrom Airport to Illinois refresh daily.

How many operators does momondo search for flights from Austin Bergstrom Airport to Illinois?

As of September 2025, there are 5 operators available to choose from for flights from Austin Bergstrom Airport to Illinois.

How old do you have to be to fly from Austin Bergstrom Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$68 Cheap Flights from Austin to Illinois in 2025/26

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Find the cheapest flights from Austin to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:48 pm - 12:36 amAUS-MDW

7h 48m1 stop

6:20 am - 5:01 pmMDW-AUS

10h 41m1 stop

$145Frontier

Find Deal

jue., oct. 23 - jue., oct. 30

11:20 am - 2:09 pmAUS-ORD

2h 49mnonstop

7:15 am - 11:16 pmORD-AUS

16h 01m1 stop

$145Frontier

Find Deal

vie., nov. 7 - sáb., nov. 8

12:15 pm - 2:50 pmAUS-MDW

2h 35mnonstop

9:10 am - 11:50 amMDW-AUS

2h 40mnonstop

$161Southwest

Find Deal

mié., oct. 15 - mar., oct. 21

5:15 pm - 8:10 pmAUS-ORD

2h 55mnonstop

1:15 pm - 4:04 pmORD-AUS

2h 49mnonstop

$161United Airlines

Find Deal

mié., oct. 15 - sáb., oct. 18

7:15 am - 9:00 pmAUS-ORD

13h 45m1 stop

10:49 am - 11:12 pmORD-AUS

12h 23m1 stop

$174Spirit Airlines

Find Deal

jue., nov. 13 - dom., nov. 16

6:00 am - 8:05 amAUS-STL

2h 05mnonstop

12:45 pm - 2:50 pmSTL-AUS

2h 05mnonstop

$177Southwest

Find Deal

mié., oct. 15 - mié., oct. 22

7:20 am - 6:38 pmAUS-ORD

11h 18m1 stop

5:05 am - 4:59 pmORD-AUS

11h 54m1 stop

$183Spirit Airlines

Find Deal

mié., oct. 29 - lun., nov. 3

6:31 pm - 9:19 pmAUS-ORD

2h 48mnonstop

2:53 pm - 5:41 pmORD-AUS

2h 48mnonstop

$186American Airlines

Find Deal

sáb., oct. 18 - lun., oct. 27

6:00 am - 8:47 amAUS-ORD

2h 47mnonstop

8:45 pm - 11:50 pmORD-AUS

3h 05mnonstop

$189American Airlines

Find Deal

sáb., nov. 8 - dom., nov. 9

1:00 pm - 8:58 pmAUS-STL

7h 58m1 stop

6:00 am - 11:31 amSTL-AUS

5h 31m1 stop

$207United Airlines

Find Deal

jue., ene. 8 - lun., ene. 12

Frontier flights from Austin to Illinois

Our best Frontier deals on Austin to Illinois flight tickets

Frontier

Nov 7

AUS11:20 amAustin Bergstrom

2h 49m

ORD2:09 pmChicago O'Hare Intl

Nov 8

ORD7:15 amChicago O'Hare Intl

16h 01m

1 stop

AUS11:16 pmAustin Bergstrom

$145

Find similar

Frontier

Oct 24

AUS6:02 pmAustin Bergstrom

5h 37m

1 stop

ORD11:39 pmChicago O'Hare Intl

Oct 27

ORD10:51 amChicago O'Hare Intl

13h 42m

1 stop

AUS12:33 amAustin Bergstrom

$146

Find similar

Frontier

Oct 24

AUS6:02 pmAustin Bergstrom

5h 44m

1 stop

MDW11:46 pmChicago Midway

Oct 27

MDW12:11 pmChicago Midway

12h 22m

1 stop

AUS12:33 amAustin Bergstrom

$147

Find similar

Spirit Airlines flights from Austin to Illinois

Our best Spirit Airlines deals on Austin to Illinois flight tickets

Spirit Airlines

Nov 13

AUS7:15 amAustin Bergstrom

13h 45m

1 stop

ORD9:00 pmChicago O'Hare Intl

Nov 16

ORD10:49 amChicago O'Hare Intl

12h 23m

1 stop

AUS11:12 pmAustin Bergstrom

$174

Find similar

Spirit Airlines

Oct 29

AUS7:20 amAustin Bergstrom

11h 18m

1 stop

ORD6:38 pmChicago O'Hare Intl

Nov 3

ORD5:05 amChicago O'Hare Intl

11h 54m

1 stop

AUS4:59 pmAustin Bergstrom

$183

Find similar

Spirit Airlines

Oct 15

AUS7:20 amAustin Bergstrom

16h 25m

1 stop

ORD11:45 pmChicago O'Hare Intl

Oct 16

ORD5:05 amChicago O'Hare Intl

10h 19m

1 stop

AUS3:24 pmAustin Bergstrom

$185

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AustinChicago

AUS - MDW

AUSMDW

Austin Bergstrom

jue. 10/23

4:48 pm-12:36 am

1 stop7h 48m

Chicago Midway

jue. 10/30

6:20 am-5:01 pm

1 stop10h 41m

$145

AustinChicago

AUS - ORD

AUSORD

Austin Bergstrom

vie. 11/7

11:20 am-2:09 pm

Nonstop2h 49m

Chicago O'Hare Intl

sáb. 11/8

7:15 am-11:16 pm

1 stop16h 01m

$145

AustinChicago

AUS - MDW

AUSMDW

Austin Bergstrom

mié. 10/15

12:15 pm-2:50 pm

Nonstop2h 35m

Chicago Midway

mar. 10/21

9:10 am-11:50 am

Nonstop2h 40m

$161

AustinChicago

AUS - ORD

AUSORD

Austin Bergstrom

mié. 10/15

5:15 pm-8:10 pm

Nonstop2h 55m

Chicago O'Hare Intl

sáb. 10/18

1:15 pm-4:04 pm

Nonstop2h 49m

$161

AustinChicago

AUS - ORD

AUSORD

Austin Bergstrom

jue. 11/13

7:15 am-9:00 pm

1 stop13h 45m

Chicago O'Hare Intl

dom. 11/16

10:49 am-11:12 pm

1 stop12h 23m

$174

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

mié. 10/15

6:00 am-8:05 am

Nonstop2h 05m

Lambert-St Louis

mié. 10/22

12:45 pm-2:50 pm

Nonstop2h 05m

$177

AustinChicago

AUS - ORD

AUSORD

Austin Bergstrom

mié. 10/29

7:20 am-6:38 pm

1 stop11h 18m

Chicago O'Hare Intl

lun. 11/3

5:05 am-4:59 pm

1 stop11h 54m

$183

AustinChicago

AUS - ORD

AUSORD

Austin Bergstrom

sáb. 10/18

6:31 pm-9:19 pm

Nonstop2h 48m

Chicago O'Hare Intl

lun. 10/27

2:53 pm-5:41 pm

Nonstop2h 48m

$186

AustinChicago

AUS - ORD

AUSORD

Austin Bergstrom

sáb. 11/8

6:00 am-8:47 am

Nonstop2h 47m

Chicago O'Hare Intl

dom. 11/9

8:45 pm-11:50 pm

Nonstop3h 05m

$189

AustinSt. Louis

AUS - STL

AUSSTL

Austin Bergstrom

jue. 1/8

1:00 pm-8:58 pm

1 stop7h 58m

Lambert-St Louis

lun. 1/12

6:00 am-11:31 am

1 stop5h 31m

$207

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How to get the cheapest flight ticket from Austin to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Austin is in April. Flight prices, which tend to average around $247, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of April, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $254.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Austin to Illinois is on a Thursday when prices can be found for as low as $376. Flights from Austin to Illinois on a Sunday will generally be more expensive and average around $687. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Austin to Illinois during this time can be as low as $313. Flights in the afternoon are often more expensive with an average ticket price of $543.

What is the cheapest Austin Bergstrom to Illinois flight route?

Fly from Austin Bergstrom to Chicago O'Hare Intl for the best Austin Bergstrom - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $320 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Austin for as low as $242 on momondo.

What cabin class options are available on Austin Bergstrom to Illinois flights?

There are 4 cabin classes available to choose from on Austin Bergstrom to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Austin to Illinois flights?

No. A direct flight is the cheapest option for a flight between Austin to Illinois.

Cheap Austin to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Illinois

Best Price Found	$120
Fastest flight time	2h 00m
Direct flights	Every day
Airports in Illinois	2 airports

The best one-way flight to Illinois from Austin in the past 72 hours is $120. The best round-trip flight deal from Austin to Illinois found on momondo in the last 72 hours is $256.

The fastest flight from Austin to Illinois takes 2h 00m

Direct flights go from Austin to Illinois every day.

There are 2 airports near Illinois: Chicago Midway (MDW), Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Austin Bergstrom Airport to Illinois?
Prices for flights from Austin Bergstrom Airport to Illinois refresh daily.
How many operators does momondo search for flights from Austin Bergstrom Airport to Illinois?
As of September 2025, there are 5 operators available to choose from for flights from Austin Bergstrom Airport to Illinois.
How old do you have to be to fly from Austin Bergstrom Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Austin to Illinois?
Based on momondo bookings for flights between Austin and Illinois, the leading plane model is Boeing 737-800, making up 18.89% of the total bookings. Other popular models include Boeing 737 MAX 8 with 14.68%, Boeing 737-900 with 13.41%, and Airbus A319 with 11.44%.

Best airlines flying from Austin to Illinois

Compare and see reviews for airlines that fly from Austin to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $73	Free Cancellation	Rating 5.8 3,162 reviews	Search Frontier flights
American Airlines	PriceFrom $137	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $161	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $196	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Illinois?

Finding the right flight to Illinois from Austin is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Austin to Illinois with flexible booking policies on momondo?

Yes. All flights to Illinois from Austin on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Austin to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Austin to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Austin to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $50

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Flights to Chicagofrom $65

Flights to Orlandofrom $57

Flights to Las Vegasfrom $47

Flights to San Franciscofrom $59

Flights to Washington, D.C.from $60

Flights to Bostonfrom $68

Flights to Atlantafrom $51

Flights to Dallasfrom $60

Flights to Seattlefrom $86

Cheap flights from Austin to Illinois from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Illinois departing on 12/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Find the cheapest flights from Austin to Illinois

Cheap round-trip flights

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Frontier flights from Austin to Illinois

Our best Frontier deals on Austin to Illinois flight tickets

Spirit Airlines flights from Austin to Illinois

Our best Spirit Airlines deals on Austin to Illinois flight tickets

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Use the filters below to find and compare flights from Austin to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Austin to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Austin to Illinois during this time can be as low as $313. Flights in the afternoon are often more expensive with an average ticket price of $543.

What is the cheapest Austin Bergstrom to Illinois flight route?

Fly from Austin Bergstrom to Chicago O'Hare Intl for the best Austin Bergstrom - Illinois flight prices

How far in advance should I book a flight to Illinois?

What cabin class options are available on Austin Bergstrom to Illinois flights?

There are 4 cabin classes available to choose from on Austin Bergstrom to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Austin to Illinois flights?

No. A direct flight is the cheapest option for a flight between Austin to Illinois.

What is the cheapest airline that flies from Austin Bergstrom to Illinois?

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Austin Bergstrom to Illinois

What airlines fly to Illinois?

How many flights depart from Austin to Illinois on average per day?

The number of flights available between Austin and Illinois is 39 per day as of September 2025. The most frequent departure time is 11:00AM, with 58% of daily flights leaving at noon.

How many flights depart from Austin to Illinois on average per week?

As of September 2025, 275 flights take off from Austin and land in Illinois each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.

Cheap Austin to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Austin Bergstrom Airport to Illinois?

How many operators does momondo search for flights from Austin Bergstrom Airport to Illinois?

How old do you have to be to fly from Austin Bergstrom Airport to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Austin to Illinois?

Best airlines flying from Austin to Illinois

Compare and see reviews for airlines that fly from Austin to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Illinois?

Can I find flights from Austin to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Austin to Illinois?

I’m not ready to book a flight from Austin to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo